Use of slags taken from blast furnaces for the improvement of petroleum cements of type "G"

The most important objective of the cementing program in the oil industry i s to separate the different zones, related to each other during drilling. T he cementing of oil wells is performed either to prevent the fluid from mig rating to areas where it can be trapped to avoid losses in production, or t o isolate zones which will be exploited later. We notice that the slag whic h is a steel scrap, improves the resistance to compression of petroleum cem ent. The slag blends at high temperature and once the reaction starts, it s ets very quickly. This property is important because with the resumption of the well drilling, the cement must have sufficient resistance to prevent t he well fro fracturing. The economic aspect is also a determinant factor as the slag, which is a steel scrap, replaces part of the petroleum cement wh ich is imported at very high prices.